CVE-2019-11743

EPSS 1.8%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.8%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

27 Sep 2019Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the unload event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html https://bugzilla.mozilla.org/show_bug.cgi?id=1560495 https://security.gentoo.org/glsa/201911-07 https://usn.ubuntu.com/4150-1/https://w3c.github.io/navigation-timing https://www.mozilla.org/security/advisories/mfsa2019-25/https://www.mozilla.org/security/advisories/mfsa2019-26/https://www.mozilla.org/security/advisories/mfsa2019-27/https://www.mozilla.org/security/advisories/mfsa2019-29/